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-rw-r--r--source3/smbd/pipes.c72
1 files changed, 52 insertions, 20 deletions
diff --git a/source3/smbd/pipes.c b/source3/smbd/pipes.c
index cf22eb17f3..693db521e7 100644
--- a/source3/smbd/pipes.c
+++ b/source3/smbd/pipes.c
@@ -194,17 +194,20 @@ void reply_pipe_write(struct smb_request *req)
wrinkles to handle pipes.
****************************************************************************/
+struct pipe_write_andx_state {
+ bool pipe_start_message_raw;
+ size_t numtowrite;
+};
+
+static void pipe_write_andx_done(struct async_req *subreq);
+
void reply_pipe_write_and_X(struct smb_request *req)
{
files_struct *fsp = file_fsp(req, SVAL(req->vwv+2, 0));
- size_t numtowrite = SVAL(req->vwv+10, 0);
- ssize_t nwritten;
int smb_doff = SVAL(req->vwv+11, 0);
- bool pipe_start_message_raw =
- ((SVAL(req->vwv+7, 0) & (PIPE_START_MESSAGE|PIPE_RAW_MODE))
- == (PIPE_START_MESSAGE|PIPE_RAW_MODE));
uint8_t *data;
- NTSTATUS status;
+ struct pipe_write_andx_state *state;
+ struct async_req *subreq;
if (!fsp_is_np(fsp)) {
reply_doserror(req, ERRDOS, ERRbadfid);
@@ -216,47 +219,76 @@ void reply_pipe_write_and_X(struct smb_request *req)
return;
}
+ state = talloc(req, struct pipe_write_andx_state);
+ if (state == NULL) {
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ req->async_priv = state;
+
+ state->numtowrite = SVAL(req->vwv+10, 0);
+ state->pipe_start_message_raw =
+ ((SVAL(req->vwv+7, 0) & (PIPE_START_MESSAGE|PIPE_RAW_MODE))
+ == (PIPE_START_MESSAGE|PIPE_RAW_MODE));
+
DEBUG(6, ("reply_pipe_write_and_X: %x name: %s len: %d\n",
- (int)fsp->fnum, fsp->fsp_name, (int)numtowrite));
+ (int)fsp->fnum, fsp->fsp_name, (int)state->numtowrite));
data = (uint8_t *)smb_base(req->inbuf) + smb_doff;
- if(pipe_start_message_raw) {
+ if (state->pipe_start_message_raw) {
/*
* For the start of a message in named pipe byte mode,
* the first two bytes are a length-of-pdu field. Ignore
* them (we don't trust the client). JRA.
*/
- if(numtowrite < 2) {
+ if (state->numtowrite < 2) {
DEBUG(0,("reply_pipe_write_and_X: start of message "
"set and not enough data sent.(%u)\n",
- (unsigned int)numtowrite ));
+ (unsigned int)state->numtowrite ));
reply_unixerror(req, ERRDOS, ERRnoaccess);
return;
}
data += 2;
- numtowrite -= 2;
+ state->numtowrite -= 2;
}
- status = np_write(fsp->fake_file_handle, data, numtowrite, &nwritten);
- if (!NT_STATUS_IS_OK(status)) {
- reply_nterror(req, status);
+
+ subreq = np_write_send(state, smbd_event_context(),
+ fsp->fake_file_handle, data, state->numtowrite);
+ if (subreq == NULL) {
+ TALLOC_FREE(state);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
return;
}
+ subreq->async.fn = pipe_write_andx_done;
+ subreq->async.priv = talloc_move(req->conn, &req);
+}
- if ((nwritten == 0 && numtowrite != 0) || (nwritten < 0)) {
+static void pipe_write_andx_done(struct async_req *subreq)
+{
+ struct smb_request *req = talloc_get_type_abort(
+ subreq->async.priv, struct smb_request);
+ struct pipe_write_andx_state *state = talloc_get_type_abort(
+ req->async_priv, struct pipe_write_andx_state);
+ NTSTATUS status;
+ ssize_t nwritten = -1;
+
+ status = np_write_recv(subreq, &nwritten);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status) || (nwritten != state->numtowrite)) {
reply_unixerror(req, ERRDOS,ERRnoaccess);
- return;
+ goto done;
}
reply_outbuf(req, 6, 0);
- nwritten = (pipe_start_message_raw ? nwritten + 2 : nwritten);
+ nwritten = (state->pipe_start_message_raw ? nwritten + 2 : nwritten);
SSVAL(req->outbuf,smb_vwv2,nwritten);
-
- DEBUG(3,("writeX-IPC pnum=%04x nwritten=%d\n", fsp->fnum,
- (int)nwritten));
+ DEBUG(3,("writeX-IPC nwritten=%d\n", (int)nwritten));
+
+ done:
chain_reply(req);
}